Database Develop

10000mAh external battery

Did anyone ever see this?
www.amazon.com/New-Trent-Extreme-Pack-IMP1000-Blackberry/dp/B003ZBZ64Q
10000mAh? Powerful!

Haven't seen that one but I do have the Proporta USB Turbocharger 3400. It works great and supplies about a days worth of power - highly recommended.

Hmm...
'Ultra reliable Lithium-Ion battery, 600% iPhone 4 Battery life, 100% 3G iPad battery life'
so the iPad has a battery of 11000mA????? Don't think so.

I think these kinds of things are great if you're camping or traveling. The 3 reviews on Amazon would make me cautious until it's had more feedback.
One tends to learn as much from negative feedback as from positive feedback (especially since there are companies that get paid to give positive feedback).
Edit: Just found this at half the price:
buy ((REMOVE THIS PART)) .com/prod/energizer-8000mah-universal-battery-pack-w-ipad-tip/q/loc/111/216795526.html

I just got the device today, and as I will be out all night, I will make a field test report in the morning to report on it's performance.
First review: Barely pocket sized and heavy. A good indication
Capacity listed on back: 11,100mAh, 3.7V (41Wh)
Output: 5V, 1A
Input (charging): 5V, 2A

For 1/3rd the price, I just cobbled up a 2-D cell battery holder powered with 10,000 mAH Low-Discharge NiMH and wired them up to a circuit board that I puleld from one of those Energizer Pocket Chargers (the things they normall bundle with 2 AA Lithium Cells).
I bolted a belt clip on it, and I'm good to go-and in a pinch I can always slap in a pair of Alkaline D cells.

wazmo said:
For 1/3rd the price, I just cobbled up a 2-D cell battery holder powered with 10,000 mAH Low-Discharge NiMH and wired them up to a circuit board that I puleld from one of those Energizer Pocket Chargers (the things they normall bundle with 2 AA Lithium Cells).
I bolted a belt clip on it, and I'm good to go-and in a pinch I can always slap in a pair of Alkaline D cells.
Click to expand...
Click to collapse
I never thought of that.
But an update on this product. Turns out, you can't leave it plugged in to the wall all the time. Mine died because of that. I sent it back and am awaiting a new one.
But the performance is really good on this thing. This thing sat through 12 hours of continuous use and wasn't near dead when I was done.

I use the PowerTraveller device which is pretty good. It holds almost twice the charge of the phone, and has been a lifesaver twice in my month-long owenership. The only flaw is that it does not seem to turn off if you unplug the phone = discharges if you forget.
That said, for £34.99, it is useful on the go.
http://www.amazon.com/Powertraveller-PowerMonkey-Portable-Charger-iPhones/dp/B0043X9IE4/ref=sr_1_7?ie=UTF8&s=electronics&qid=1288026378&sr=1-7

One of the reasons I avoid those LiOn packs is that when the battery packs die you're sorta screwed in trying to find replacement cells-and based on my experience, I've yet to see LiOn cells last more than 300+ charge/discharge cycles. That's why I still have as my primary Bluetooth headset a Motorola H300 that takes AAA cells. Sure it may not look sexy-but I don't have to pitch it when the cells crap out.

WOW! this is brilliant! could you please post a photo (kind of manual-type). What is the brand of your 2Ds? Aslo, could you please provide some review/technical feedback on how it behaves? How long it charges? how many full cyclescan it go for?
wazmo said:
For 1/3rd the price, I just cobbled up a 2-D cell battery holder powered with 10,000 mAH Low-Discharge NiMH and wired them up to a circuit board that I puleld from one of those Energizer Pocket Chargers (the things they normall bundle with 2 AA Lithium Cells).
I bolted a belt clip on it, and I'm good to go-and in a pinch I can always slap in a pair of Alkaline D cells.
Click to expand...
Click to collapse

I use AccuPower AccuEvolution low-discharge NiMH D cells:
http://www.amazon.com/AccuEvolution-Self-Discharge-NiMH-Cells/dp/B00124BN4U
The circuit board I ripped from the Energizer Energi-to-Go cell phone charger:
http://www.amazon.com/Energizer-Ene...7?s=electronics&ie=UTF8&qid=1288832498&sr=1-7
Here's what the beast looks like cobbled together:
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The D-cell holder has a belt-clip bolted on to it. The circuit board from the energi-to-go is hot-glued on to the top of the battery holder. When the phone is plugged into the pack, the blue LED blinks through the hot-glue.
I expect that I'll get hundreds of cycles from the thing.
I have a smaller lash-up using two sets of AA cells wired in parallel. With the NiMH AA I get about 5-10 charge cycles using Sanyo eneloop AA's depending on the discharge of the phone.

thanks again
wazmo said:
I use AccuPower AccuEvolution low-discharge NiMH D cells:
http://www.amazon.com/AccuEvolution-Self-Discharge-NiMH-Cells/dp/B00124BN4U
The circuit board I ripped from the Energizer Energi-to-Go cell phone charger:
http://www.amazon.com/Energizer-Ene...7?s=electronics&ie=UTF8&qid=1288832498&sr=1-7
Here's what the beast looks like cobbled together:
The D-cell holder has a belt-clip bolted on to it. The circuit board from the energi-to-go is hot-glued on to the top of the battery holder. When the phone is plugged into the pack, the blue LED blinks through the hot-glue.
I expect that I'll get hundreds of cycles from the thing.
I have a smaller lash-up using two sets of AA cells wired in parallel. With the NiMH AA I get about 5-10 charge cycles using Sanyo eneloop AA's depending on the discharge of the phone.
Click to expand...
Click to collapse
Thanks again for detailed explanation! I will try to get the "ingredients" and try to assemble on my own.
I had an urge of buying Energizer Energi-To-Go before, but then i learned that it cannot be used with rechargeables. Is it true?
Correct me if I am wrong with following "naive" calculations - 2 D cells 10000 mAh, 1.2 V each as source and 1280 mAh, 3.7 V HD2 battery as a subject. Assuming the conversion efficiency is somewhere around 80% one gets 0.8x(2x10000x1.2)/(1280x3.7) = 4 for number of full charges of dead empty HD2.
Is it what you experience? (actually that is what i meant under query for number of cycles)

Having ordered from newtrent before, I can say the IMP products work well. I bought one for a collegue, she got 3 full charges off her IMP500 before having to recharge the battery.
They're decent products, well packaged and they do give a decent battery life.

lusjash said:
Thanks again for detailed explanation! I will try to get the "ingredients" and try to assemble on my own.
I had an urge of buying Energizer Energi-To-Go before, but then i learned that it cannot be used with rechargeables. Is it true?
Correct me if I am wrong with following "naive" calculations - 2 D cells 10000 mAh, 1.2 V each as source and 1280 mAh, 3.7 V HD2 battery as a subject. Assuming the conversion efficiency is somewhere around 80% one gets 0.8x(2x10000x1.2)/(1280x3.7) = 4 for number of full charges of dead empty HD2.
Is it what you experience? (actually that is what i meant under query for number of cycles)
Click to expand...
Click to collapse
Older NiMHs cells probably don't have the same load characteristics as the low-discharge cells do-I have used low-discharge cells with the stock energi-to-go and can usually get 2 cycles depending on the state of charge of the phone. However, my Nokia N900 does need a higher input voltage to kick the circuit over-in that case I slap one alkaline and the NiMH and all is well.
I usually don't let the phone get to a complete dead state-that tends to make charging much more challenging. What I have done is I created a cutout in my case where I can connect the headphones and power.

220.000 mAh ext. Battery
More Power ... HAR - HAR - HAR:

karendar said:
Having ordered from newtrent before, I can say the IMP products work well. I bought one for a collegue, she got 3 full charges off her IMP500 before having to recharge the battery.
They're decent products, well packaged and they do give a decent battery life.
Click to expand...
Click to collapse
Try the IMP100/880E. over 24 hours and it's still not dead
hellraiser-rh said:
More Power ... HAR - HAR - HAR:
View attachment 434354
Click to expand...
Click to collapse
That's called **** bricks power

Ya mean Varta actually still lives? Last time I saw a Varta-manufactured cell it was at an IKEA store-now even they went with Chinese-manufactured cells.
Too bad-they could have gone to an American-made battery-Panasonic!

wazmo said:
Ya mean Varta actually still lives? Last time I saw a Varta-manufactured cell it was at an IKEA store-now even they went with Chinese-manufactured cells.
Too bad-they could have gone to an American-made battery-Panasonic!
Click to expand...
Click to collapse
You're damn right, Varta is down the drain.
But it was the firts pic i found
This will also be needed for extreme ext. Power Supply:

This one is the best choice you can make

romskii said:
This one is the best choice you can make
Click to expand...
Click to collapse
Now if we can figure out how to generate power from the wheel: Lucy 4.0 has spun her wheel 360+ km in 430 days per www.hamstertracker.com...

NC solar charger setup

One of the main reasons I got a NC was for being able to have on hand lots of useful books for TEOTWAWKI or SHTF and also was concerned about recharging it after services are interrupted or go down for long periods of time.
Here is the basic setup that will also be used to charge AA/AAA and 123 batteries:
Sunlinq 12W folding Solar Panel
http://www.globalsolar.com/en/products/portable-solar-chargers/commercial/12-watt.html
This actually puts out 15 volts and close to 1 amp and has a car cigarette lighter type outlet adapter.
Champtek USB Car Charger Kit
http://champtekinc.com/champtek/CC-210.html
This is rated at 5v 2.1 amps output.
I have only tested this once and it appears that there is enough current being generated to have the N on the plug glow orange and the NC indicate it is being charged. Going to have to do a test to compare charging time compared to regular house current.
I think I will eventually add a 4000 mah external battery since that can be used for more than just backup power for the NC.

Looking forward to seeing the results! How large/heavy is that solar panel?

The specs on the sunlinq 12W are:
folded: 9" x 5" x .7"
open: 29" x 17.5" x .03"
weight: .7 lb
I bought it about 3 years ago for around $150. There is a 25W version, but it is much bigger and cost around $350.
One of the backpacking magazine writers tested out a unit during a trip to Alaska and it suffered no ill effects of freezing, thawing, and rain while strapped to top of a tent.

I was also thinking about solar powering
but in the more cheap side of things
I'm actually installing this in a car ( rear deck probably )
so I don't care about weight and even size much
What do you think about this ?
http://www.adafruit.com/blog/2010/0...boost-a-solar-power-charger-for-your-gadgets/
Could this work? Maybe 2 panels connected in parallel?
I live in Israel and we get 10+ good sun hours a day here

Cool stuff. I also use my nook while backpacking/geo-caching. I live in michigan though, and even when we have sun, it's not that much for a solar charger. I'm looking into getting one of the fuel cell chargers, like the SiGNa's mobile-H2. here's a write up about it, http://arstechnica.com/science/news/2011/03/just-add-water-to-recharge-batteries.ars .
They said they're going to launch with a 5watt/hr one first. which is not really enough for the nook color. I'm hopeful though. With the success of the ipad(lol I know dirty word around these parts) and android tabs. I would expect a larger, more like 15 or 20watt/hr, device to be released. Best part is, any water will work even the yellow kind.
Hydrogen fuel cell tech is the real future of energy. We just need to find the right catalyst. (also china needs to stop hoarding rare earth metals) A 10% hydrogen recovery rate and non reusable catalysts, just won't cut it.
Sent from my Nook Color using Tapatalk pro

Dj-Gutz said:
I was also thinking about solar powering
but in the more cheap side of things
I'm actually installing this in a car ( rear deck probably )
so I don't care about weight and even size much
What do you think about this ?
http://www.adafruit.com/blog/2010/0...boost-a-solar-power-charger-for-your-gadgets/
Could this work? Maybe 2 panels connected in parallel?
I live in Israel and we get 10+ good sun hours a day here
Click to expand...
Click to collapse
I am not an electrical engineer and only took a basic electronics class way back in high school (I have forgot most of it) so some of the things I say may not be completely accurate.
The thing with solar panels is that you have to match the panel output to the device you want to charge. There are lots of nice looking small solar chargers on the market, but if you read the small print the charge times can become ridiculously long.
I have seen small cheap china made solar battery chargers that state 3v at 200ma (if this is even accurate). This would be fine for directly running a small portable radio, but for charging 2 AA batteries it would take a very long time. The new generation of low self-discharge nickel-metal hydride AA batteries have capacities of up to 2500 mah. Using this cheap charger would take over 12 hours for just 2 these batteries.
I am estimating that the sunlinq (rated output 800ma, but I have measured close to 1a) should charge a NC (4000 mah battery) in about 5 hours.
The device in the article you mentioned I think could only be used to trickle charge a NC but only to about 25% capacity.
It would be great if someone with more electronics knowledge could add his opinions here.

Cheap solar power for my phone
So actually I figured out how to charge my vibrant with solar power on the cheap. I think solar cells with integrated batteries are a waste since the device being charged already has a battery, so why waste money/current?
The solar panel cost $25. I thought the specs were too good to be true, but solar panels are better than they used to be. The panel turned out to be exactly as advertised.
Assuming the Nook can charge with 400-700mA of current, this should work for the nook too: http://taras-log.blogspot.com/2011/05/cheap-solar-power-for-my-phone.html
These panels are about the size of a small tablet, apparently one can also cut them down to size. I hack that I want to see is where someone replaces the tablet backcover with a solar panel. Imagine a nook that never has to charge while outside . I would love to have my Nook Simple Touch modified this way, but I'm afraid that's beyond my machining abilities

Imbroglio said:
I am not an electrical engineer and only took a basic electronics class way back in high school (I have forgot most of it) so some of the things I say may not be completely accurate.
The thing with solar panels is that you have to match the panel output to the device you want to charge. There are lots of nice looking small solar chargers on the market, but if you read the small print the charge times can become ridiculously long.
I have seen small cheap china made solar battery chargers that state 3v at 200ma (if this is even accurate). This would be fine for directly running a small portable radio, but for charging 2 AA batteries it would take a very long time. The new generation of low self-discharge nickel-metal hydride AA batteries have capacities of up to 2500 mah. Using this cheap charger would take over 12 hours for just 2 these batteries.
I am estimating that the sunlinq (rated output 800ma, but I have measured close to 1a) should charge a NC (4000 mah battery) in about 5 hours.
The device in the article you mentioned I think could only be used to trickle charge a NC but only to about 25% capacity.
It would be great if someone with more electronics knowledge could add his opinions here.
Click to expand...
Click to collapse
My nook will be in deep sleep as long as the car not running ( I drive about 0.5-1 hour a day , maybe more on weekends but it shouldn't matter much )
And when the car is running it will be charging via 2A charger
What I'm hoping is to eliminate the need for the charger when I can ( it will be left plugged in for shady days etc of course )
So it doesn't have to charge it @ full current , 5 hours is probably perfect...
But it's pricey for me..
toolong said:
So actually I figured out how to charge my vibrant with solar power on the cheap. I think solar cells with integrated batteries are a waste since the device being charged already has a battery, so why waste money/current?
The solar panel cost $25. I thought the specs were too good to be true, but solar panels are better than they used to be. The panel turned out to be exactly as advertised.
Assuming the Nook can charge with 400-700mA of current, this should work for the nook too: http://taras-log.blogspot.com/2011/0...-my-phone.html
These panels are about the size of a small tablet, apparently one can also cut them down to size. I hack that I want to see is where someone replaces the tablet backcover with a solar panel. Imagine a nook that never has to charge while outside . I would love to have my Nook Simple Touch modified this way, but I'm afraid that's beyond my machining abilities
Click to expand...
Click to collapse
I actually looked at that solar panel before , good to know that it's as described , Ill defiantly consider it so thanks
What happens when the battery is full and it's connected? Does it drain it?
Looks like the setup in the link I posted earlier got some kind of circuit to keep it from draining the battery - Or does it only happen because of the charger battery? ( seems so electricity wise but I don't have any experience with solar panels and I don't know if they can draw power as well )
Also , can I hook 2 of these in parallel to achieve more current?
Thanks ( Sorry for "taking over" this thread Imbroglio , Let me know if you want me to open a separate thread for my setup )
Edit :
I just saw the "update" on the link you posted , Looks like it's draining the battery in the shade
I'll be following his thread to see if there is any progress on this issue
Quick link : http://forum.xda-developers.com/showthread.php?p=15413618#post15413618
If it doesn't resolve using software maybe we can just see how to incorporate the circuit from the setup I posted with this panel ( My guess it shouldn't be hard )

I'm in the process of making a solar panel for my gadgets (not enough for NC yet, but for my G1, camera, etc, it does the trick). You need some diodes to ensure the current doesn't go the other way.
Also, if you want some regulation of voltage and power to the device (in case you are doing it all on your own with panels off ebay, etc), you should get a voltage regulator and toss some resistors in their for the right current.

I found this tool in android modaco forums :
http://android.modaco.com/topic/333406-usb-charging-commander/
github : https://github.com/t0mm13b/USBChargeCommander
On my HD2 CM7 it doesn't work , please check it on the NC CM7 if you can
I don't have my nook yet
If it works it should take care of that issue
If not , maybe we can go through the source and make it work on the nook
*Side Note : on CM7 - the charging animation should still be showing , but spare parts should say on the battery info discharging

So as far as i can tell the diode that the cell comes with is sufficient to prevent drawing current from the phone. Problem is the circuitry in the phone is stupid and doesn't shut off when it sees insufficient current. I suspect that since the phone thinks it's charging, it is turning on extra circuitry which itself consumes power. Thus the power drain.
Solar cell provides a stable 5V whether it's providing 0 or 600mA, so you don't need a voltage regulator... And you can't use a voltage-based regulator to build a circuit to shut off charging when the current gets too low.
I don't see why you wouldn't be able to hook these up in parallel. Should work fine.
I looked at the source code for the Vibrant battery driver. It can certainly turn off charging in software. Just need a slight kernel mod to expose that via /sys. Looks like zte blade already does it. I dont see why the nook can't do the same. I don't know if the Nook can report the current level.

On the xda thread the guy says he can see the current in /sys/devices/platform/jupiter-battery/power_supply/battery/batt_chg_current
On my hd2 this is the path for example /sys/devices/platform/htc_battery/power_supply/battery/batt_current
so just look for similar path names
can you check this on your nook?
you can use root explorer , just long click on the file and open in text editor
Edit :
I actually noticed I'm not getting the charging current on the HD2 , but the current the device uses in general which I don't think can determine whether it should stop the charging based on that value alone
any thoughts?

I finally got a chance to test everything out.
The first test was yesterday with the NC at 72%. Time was 6 pm pst. No overcast sun was at about 40-45 degrees on the horizon. Charging indicator was on and I let it sit for 20 minutes and when I brought the NC out of sleep mode, it was responding erratically. Battery Spy would lock up completely. Everything was fine after reboot, but no increase in battery %. The same thing happened after allowing another 10 minutes of charge time. My multi-meter is not working so I could not get a reading of how much the solar panel was putting out. My guess is that the problem was due panel being used too late in the day and the car adapter wanting to put out 2.1 amps made for an unhappy NC.
Today I tried out the setup at 1:00 pm pst. No overcast sun directly overhead. Charging indicator was on and Battery Spy or the NC did not exhibit the same problems as yesterday. Unfortunately, I didn't have enough time to let it sit and charge and was just testing the NC while it was plugged in. It appears that the car charger/NC combination has to be used during the sun's peak hours, probably from 11-4 pm.
More testing is needed. If the problems persist, I may have to change to a 1 amp car charger or resort to charging an external battery.

Why not use a solar charger with an integrated battery?

Got some free time...
So, I finally got some time today to wire mine up all proper-like. A few things to note (so I do not get 1000's of "you're an idiot/should have done it this way/etc").
I did not want to carry any more extra stuff, so external battery (maybe later)
This will mostly be used for my cell phone/camera/etc, so 5V/.5A was the goal for output
I'm going to try and find a cheap case today to put it all in
This will not charge an NC while on. Only off, and at a very slow rate. See second comment.
To make work well with the NC, just add more in parallel/get a larger panel.
Anywho, I bought 2x solar panels from ebay (each at 300 mA, 6V). Tossed them into parallel (for 6V, 600 mA), then dug out some resistors and got a few LM317T voltage regulators. Since most devices have (or hopefully have) a circuit that cuts off at a certain voltage, I needed to control the output voltage to ensure I would have a charging device regardless of brightness (The panels ended up putting over 7V out).
The LM tends to have a volt or so drop through it, so I targeted 6V out (using this).
Soldered some stuff, wired it together, testing it without load with a multimeter, and finally plugged in the NC (after testing it with my G1).
I know you can't see **** with the pictures (the N glowing orange or the charging lightning bolt, but it was there).
Woohoo!
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ace7196 said:
So, I finally got some time today to wire mine up all proper-like. A few things to note (so I do not get 1000's of "you're an idiot/should have done it this way/etc").
Click to expand...
Click to collapse
Very cool setup. It looks like those panels are about the right size to attach to a rigid backing and onto the side of a notebook case.
I came across a video on youtube where a guy is reviewing an solar charger with battery setup called PowerMonkey eXplorer.
https://powertraveller.com/iwantsome/primatepower/powermonkey-explorer/
Much of the company's product line is meant to be used outdoors and exposed to the elements. The eXplorer has a 2200mah battery and the solar panel outputs 200ma so you are looking at around 11 hours in direct sunlight. Given that the NC has a 4000mah battery it would only give about a 50% charge.
The PowerMonkey eXtreme looks alot more suitable for the NC.
https://powertraveller.com/iwantsome/primatepower/powermonkeyextreme/
9000mah battery and 2.1 amp output! The drawback is that it appears the solar panel is just a bit more larger than with the eXplorer unit. If it puts our say 400ma it is still going to take around 24 hours of direct sunlight to get a full recharge.
I am still going to stick with what I have right now though and maybe look into getting an external battery to charge instead of trying to run the solar panel directly to the NC.

[Q] Standalone BAttery FAST CHARGER?

Well, I have about 3 batteries for my Optimus 2X, and I'm managing of buying another extended one (3500mAh).
I have an external standalone battery charger which is the usual crap you'll find on eBay...there's no choice , they are all the same model
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Now, the problem is that this charger, has a ridiculus current of 350 mAh +-50mAh
which is waaaaaay not enough to charge the battery in a decent time.
I mean the standard 1500mAh battery charges in something like 7-8 hours.
So the new extended one will take a full day to charge, at least this will not surprise me, considering the time it takes to charge the standard one.
So I'm searching for a wall charger that can charge batteries standalone... and that has a decent current I mean 800mAh or above.
It could be also integrated into a dock/cradle for the phone.....like the KiDiGi one (that should have a 800mAh current for the battery and 1000mAh for the phone), but it should have enough place to put an extended battery on it, which the KiDiGi one has NOT.
Hoping the community has some rabbits in the hat for me.
Thanks

http://cgi.benl.ebay.be/AC-Battery-...537522?pt=PDA_Accessories&hash=item2c5ec51db2
it says
100% brand new,High quality
External desktop battery charger,more convenience to charge your standby batteries.
Battery charger with USB:Charging stop once battery is full,Nerver overcharge keeps the performance and life of
the battery more convenience to interchange your standby batteries
Input AC:110-240V 50-60Hz 0.2A
Output:5V 800mA
Plug type:US standard

thank you for your reply but it is the same charger i already have.
That specs are the specs for the USB output.
If you look into the photo of your link, you'll see that the battery itself is charged at the usual 350mAh....
the specs are the same of my charger....sadly

I should say thx to you, it was thinking of buying 1 to charge my extended 3500mah battery I just purchased from ebay
I just got my 3500mah delivered is charging right now in my phone
looking for a charging dock to

let me know how long did it take and if it was with phone off or on, and via wall charger o USB.
I ordered mine 3 days ago...

The battery was already charged to 95%, let it charge for 2 hours to be sure it is full, deleted battery stats now it's 5 hours ago and still 86% wifi as being on all the time, mail sync every 30minuts, and lots of Tapatalk, 30minuts of gaming,
Wen battery is empty I will full charge and let you now how long it takes
Sent from my Optimus 2X using Tapatalk

i put my phone on the charger with total empty battery (3500mah) on 11PM
at 7AM wen I waked up , the phone was full charged , so full charging overnight is posibble with the original charger
don't now how long it take in total , could not see because phone was total dead wen i put it tot charge , turned phone on in the morning and battery was total full

Thank you. So it took 9 hours with phone shutted off.

Less than 9hours I was asleep so don't know exact time
Sent from my Optimus 2X using Tapatalk

Charged @1%left after 2hour 30min battery was full charged (3500mah batt) with stock lg charger
Sent from my Optimus 2X using Tapatalk

Thank you for your reports, phone was switched off, in this last case?

TheBo said:
Thank you for your reports, phone was switched off, in this last case?
Click to expand...
Click to collapse
no turned on

http://www.focalprice.com/MC312B/SEA_LG_Optrmus_2XP990_Portable_Cradle_Charger_Black.html
Quite expensive, but it outputs 1A
Good thing is that the adaptor is separate so you can use your own adaptor, maybe a 2A one.
But it looks shady cause the picture on the box doesn't look like Optimus 2X
http://www.dealextreme.com/p/dual-u...th-extra-battery-slot-for-lg-optimus-2x-73031 <-- if you're more comfortable with dealextreme
I went through the thought of getting a extra battery as well but the price and the extra stuff is just isn't worth it.
When i stop using the optimus 2x or if it dies i will have a almost useless cradle with useless batteries.
I went down the path of getting backup battery instead since i can use it on other devices. (the universal type)
http://www.dealextreme.com/p/univer...wer-port-green-white-flat-plug-110-240v-55661
EDIT: you can also get something like this but the output isn't great but you can use it for old phone battery and any battery which is 3.7V
There are a lot more like this, you can take your time to find the perfect one.

Kag said:
http://www.focalprice.com/MC312B/SEA_LG_Optrmus_2XP990_Portable_Cradle_Charger_Black.html
Quite expensive, but it outputs 1A
Good thing is that the adaptor is separate so you can use your own adaptor, maybe a 2A one.
But it looks shady cause the picture on the box doesn't look like Optimus 2X
http://www.dealextreme.com/p/dual-u...th-extra-battery-slot-for-lg-optimus-2x-73031 <-- if you're more comfortable with dealextreme
I went through the thought of getting a extra battery as well but the price and the extra stuff is just isn't worth it.
When i stop using the optimus 2x or if it dies i will have a almost useless cradle with useless batteries.
I went down the path of getting backup battery instead since i can use it on other devices. (the universal type)
http://www.dealextreme.com/p/univer...wer-port-green-white-flat-plug-110-240v-55661
EDIT: you can also get something like this but the output isn't great but you can use it for old phone battery and any battery which is 3.7V
There are a lot more like this, you can take your time to find the perfect one.
Click to expand...
Click to collapse
Thank you for your time!
Sadly none of them specifies the output current for the battery 4.2V @ xxx A
They only say that the usb port is feeded with the 5V USB spec voltage and the current of 1 A...this is the current that the phone receives and not the standalone battery. It's pretty easy to find simple wall charger to plug directly into the phone that will output 1A of current @ 5V.
The last one you linked seems to do, althought not explicited, 500mAh both on the USB 5V and on the 4.2V of the battery pins
Thank you in any case.

TheBo said:
Thank you for your time!
Sadly none of them specifies the output current for the battery 4.2V @ xxx A
They only say that the usb port is feeded with the 5V USB spec voltage and the current of 1 A...this is the current that the phone receives and not the standalone battery. It's pretty easy to find simple wall charger to plug directly into the phone that will output 1A of current @ 5V.
The last one you linked seems to do, althought not explicited, 500mAh both on the USB 5V and on the 4.2V of the battery pins
Thank you in any case.
Click to expand...
Click to collapse
Most of such device don't regulate the current, usually just the voltage.
As long as the AC to DC adaptor can provide everything will go through (meaning the output current of the adaptor will be the rating going to the battery/phone or whatever)
And how much of it is used up depends on the device drawing power.
Note: you do have to beware of some made in china adaptors as the rated specs sometimes do not match up to the actual.

remaining on topic I think this could be useful 0.8A http://www.dealextreme.com/p/0-8-lc...-car-power-adapters-for-digital-cameras-41216
Regarding the 3500mAh extended battery this is the measured capacity after ONE cicle of charging/discharging from Battery Monitor Widget
I think this could be useful in the future, I will update it if the capacity increases meanwhile I charge/discharge it...at least for the few first times this could be possible.

Battery
I think the stock one is good to have ! No need to change !

My eBay charger works fine, charge time is long yes but it charges about as long as my battery lasts did I'm never running out.
Sent from my LG-P990 using Tapatalk

pordokoftis said:
I think the stock one is good to have ! No need to change !
Click to expand...
Click to collapse
yes but it is useless regarding the focus of this topic.
We are discussing about standalone spare batteries chargers.

I think it is better to charge your 3500mah (or 2500mah?) battery using a 2amp usb adapter. Charging a lithium battery at anything 1c and below is very safe. So if you're charging 3500mah (3.5amp) battery on a 1amp charger, it's only like 0.3c which is way less. Atleast if you use a 2amp charger, you can charge your big battery around 2hrs tops. But there is no desktop charger with 2amp output though, just usb adapters, mainly for ipads.

Charging time

I just wanted to know how long it takes to charge Note 2. Mine is on charging the entire night yet it goes to a max of 70%. Where as with hours of charging from pc usb it charges to a 100%.

Get the Galaxy Charging Current app in the play store, then check your cables. Probably bad cable. My original samsung cable was good until a couple months ago when it suddenly went from 1600 ma to 300 ma when it was charging.

Phone modify charge speed whith different cable configuration.
Your cable or connector have a problem.

It's a very simple math. Your N2 battery 3100 mAh. If you use Samsung 2A (2000 mA) charger, it will take you 3100 mAh / 2000 mA = 1.55 h to charge your phone. This is an ideal number considering phone is off (nothing else is draining your battery in parallel). Considering some efficiency factors it will be closer to 2.5 hours since you will not be able to get ideal 2A out of charger anyway. Your charger has the converter and usb cable. If you are not using original converter but rather something you got off ebay, most likely its rated a lot lower, maybe 1A or maybe even less - your charging speed will go down. Then, if you are using cheap usb cables - those might be able to handle only 500 mA of current (typical PC/laptop usb power) - slowing down even more. Plus, when you are charging your phone and you are running some cpu intense apps in the background (like GPS still on, etc.) - you could be discharging your phone at a fast rate in parallel with charging it up.
There are a lot of factors that will be contributing to slow charging speed of your phone. Typically converter and cable are the main ones.

Vectron is quite spot on. My Note 2 charges from >5% to 100% in about 2 and a half hours with the original Samsung AC adapter and USB cable if I'm not using the phone. The charge time dramatically increases if I use a low quality aftermarket cable.

I use an old 850 mA Palm charger which has a nice, thick, low resistance cable. Average time from ~10% to 100% is 3hrs.
Sent from my SPH-L900 using Tapatalk

https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free
Check your charging current with the above app, my Note 2 comes with a 2A stock charger and with the stock usb cable I get average of 1800mAh which would charge my phone from 0% to 100% in about 1~2 hours, i have a few third party charger/cable too, I used the said tool to find out their charging quality.
Also if you got a third party charger, check its label, they usually have the average currents stated there, if you got a 300~460mah charger it will take a while to fully charge your Note 2.

Check your charger or cable it should take a maximum of 2 hours and half to fully charge the phone.
Sent from my GT-N7100 using XDA Premium 4 mobile app

around 2h 15 minutes from 0, charging at 1.6A

iTTi said:
I just wanted to know how long it takes to charge Note 2. Mine is on charging the entire night yet it goes to a max of 70%. Where as with hours of charging from pc usb it charges to a 100%.
Click to expand...
Click to collapse
u might want to install this " GalaxyChargingCurrent_v1.1"
to measure your cable and charger whether supply 2Amp that they should,.
anything show above 1400 then u are fine,

I have an issue charging my 7105 where it will only put through between 100-400mah (according to the Galaxy Current Lite playstore app) through causing 8+ hour charges and fast battery drain, which seemed to be the case with 4 Different MicroUSB cables and 2 chargers.
I ended up fixing this with a custom kernel and rom (beanstalk) using the cable reporting 400 and the original standard charger.
With the uNEAK Engine, I ticked "Ignore 100mA Margin" and "Ignore Unstable Power", jacking up the sliders to max, and I'm now juiced up with 1800mah, charging well within 2 hours.

mobilephone2003 said:
I have an issue charging my 7105 where it will only put through between 100-400mah (according to the Galaxy Current Lite playstore app) through causing 8+ hour charges and fast battery drain, which seemed to be the case with 4 Different MicroUSB cables and 2 chargers.
I ended up fixing this with a custom kernel and rom (beanstalk) using the cable reporting 400 and the original standard charger.
With the uNEAK Engine, I ticked "Ignore 100mA Margin" and "Ignore Unstable Power", jacking up the sliders to max, and I'm now juiced up with 1800mah, charging well within 2 hours.
Click to expand...
Click to collapse
I'm intriuged with this "Ignore unstable power" option in my kernel as well, but it has a warning saying to try at your own risk. Do you think there are any safety issues with ignoring unstable power?

vantt1 said:
I'm intriuged with this "Ignore unstable power" option in my kernel as well, but it has a warning saying to try at your own risk. Do you think there are any safety issues with ignoring unstable power?
Click to expand...
Click to collapse
I can't say there's no risk at all, but the rest of my electronics haven't blown up yet so i'm sure it's fine

mobilephone2003 said:
I can't say there's no risk at all, but the rest of my electronics haven't blown up yet so i'm sure it's fine
Click to expand...
Click to collapse
Sounds safe enough to me!

just want to share my experience : today i tried to charge my phone with LG G2 OEM charger & cable. form 10% - 100% only took amazing ~ 1 hour 20 min :good:. phone on standby, not turned off. i checked LG G2 forum on XDA about where to buy this charger, but no avail. some said they have to call LG US CS support to place order by phone. i didn't have Galaxy Charging Current apps installed when i tried LG's charger. if i can have a hold again, will update here.
here are the charger look :
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"lightbox_thumbnails": "Thumbnails",
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"lightbox_share": "Share",
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"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
anybody knows where to buy this ?

[REVIEW] Tenergy and Powermod Quick Charge 2.0 Chargers

A review for the following products:
Tenergy AC Wall Fast Charger with Qualcomm® Quick Charge™ 2.0 technology
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}
Powermod Quick Charge 2.0 Certified D/C In-Vehicle Car USB Charger
Both chargers are as fast as advertised over my stock HTC A/C charger that came with the phone and my Rockfish car charger I've been using since my HTC Vivid days.
They both came in nice retail packaging and the Powermod car charger comes with a nice (but short) USB cable. The Tenergy wall charger has an LED on it and it is blue when an non QC 2.0 device is plugged in and turns green when a QC 2.0 compliant device is plugged in. Unfortunately the car charger doesn't have this feature. It has a blue light that rings the device but only indicates that it has power. It doesn't change color when a QC 2.0 compliant device is plugged in.
I have found that both of these chargers will not charge my Asus Transformer TF201. I find this strange because I've used other USB style wall chargers with my Asus data cable (the transformer has a proprietary changing port connector) that worked just fine. Still doing research on that one but I'll not be using these to charge my tablet. I just wanted to point this out as some of these QC manufactures say they are backwards compatible with most devices. YMMV.
I've been using both for about 3 weeks and am very happy with the performance of both units.
Below is data from a series of comparison tests to show how much faster the Qualcomm QC 2.0 chargers are over stock type chargers. The data in the HTC vs. Tenergy charger is an average of 4 charges per device. The HTC vs. Tenergy temperature comparison chart is through one full charge cycle from below 20% to 100%. As you can see the QC 2.0 does charge at a higher temperature. I also took the temperature while charging on QC 2.0 with my DotView case on and at 50% the temperature on the back of the case was 91.4 F. I have taken my phone temperature after heavy gaming and the back has actually gotten hotter just playing games than at any time during the charging cycle with QC2.0. I used a IR handheld thermogun we use at work.
The Powermod and Rockfish data is from my commute to and from work that is on average 30 minutes. There are 4 charge cycles for each devise over a 30 minute period.
Conclusion:
The performance of both units is great compared to stock. Since I can already get a full day worth of battery with between 15 and 20% left after a typical day both these chargers just make life easier. If you have to go somewhere but still have 30 minutes before you leave you can "top off" your battery before leaving if you are low. Example, you realize you have less than 10% battery but have some time before you have to leave. Plug you QC 2.0 charger in and get to at least 50% in that time. I feel much better walking out the door with 50% than 10%. With the car charger you can keep your battery "topped off" between destinations. Time will tell on the longevity of the phone battery and the chargers themselves.
I hope you've found this helpful.
I recommend both of these units.:good:

Images do not work here...

OP,
Some links would be nice. I rarely ever have any issues with running out of power like you have stated. I usually charge while i'm at my desk at work all day, and when I sleep at night, and I never have had an issue with an empty battery. I'm sure some people do have trouble with that; like those who spend all day on the phone, but I'd like to see which products you are talking about, OP.
Thanks!

waynerbbx said:
OP,
Some links would be nice. I rarely ever have any issues with running out of power like you have stated. I usually charge while i'm at my desk at work all day, and when I sleep at night, and I never have had an issue with an empty battery. I'm sure some people do have trouble with that; like those who spend all day on the phone, but I'd like to see which products you are talking about, OP.
Thanks!
Click to expand...
Click to collapse
I'm pretty sure this and this is what OP has in mind, but I could be wrong.

Actually I'm not sure why my pictures are not showing up. I have my pictures set to public. I'll move them and try another location as soon as I get to work.
I see the pictures.........anyone else see them?

Pictures are working now. And holy cow..that's some impressive work Thanks for taking the time to test it all!

Thanks for the input.
I have the Tenergy wall charger and I have been pleased with the results. I will probably buy the same car charger you have next.

Glad everyone seeing the data now. I put this together because of all the questions on QC 2.0 that past few months.
BTW - I do crap like this all the time at work so it really wasn't that much work other than gathering the data. The charts etc took less than an hour to create after I had all the data I wanted.

Cheers mate!
Great data indeed
Sent using Tapatalk

abyssis said:
I'm pretty sure this and this is what OP has in mind, but I could be wrong.
Click to expand...
Click to collapse
Interesting! Thank you for sharing the links!

Thanks for your input M8!

Nice review,thanks!

I bought the car charger and it is not turning green when I plug my phone into it. Do I need to do something different?

Phrostbite said:
I bought the car charger and it is not turning green when I plug my phone into it. Do I need to do something different?
Click to expand...
Click to collapse
The car charger doesn't indicate if it's charging at QC 2.0 specs. Only the wall charger does that. The only way you can tell that the car charger is doing it's QC 2.0 is by the battery level or using an inline USB current meter that will show the charge rate.
Sorry for the confusion, I'll update my review.